Dough-mixing machine.



P; SBIPEERT. DOUGH MIXING MACHINE.

APPLICATION FILED JUNEv 19, 1909.

949,132., Patented Feb. 15, 1910.

WT/VESSES:

v ATTO/MIE Y FREDERICK SEIFFERT, OF OAKLAND, CALIFORNIA.

BOUGE-MIXING MACHINE.

Specification of Letters Patent.

Patented Feb. 15, 1910.

Application filed .Tune 19, 1909. Serial No. 503,224.

To all whom it may concern:

Be it known that I, FREDERICK Snrrrnnr, citizen of the United iStates,residing at Oakland, in the county of Alameda and State of California,have invented certain new and useful Improvements in Dough- MixingMachines, of which the following is a specification, reference being hadtherein to the accompanying drawing.

This invention relates to batter mixing machines, and the principalobject of the invention is to provide a machine of the type specifiedwhich will assure of the batter being thoroughly and smoothly mixedwithout danger of the grain of the batter or dough being cut.

In carrying out the objects of the inven tion generally stated above itis contemplated equipping a batter or dough mixing machine with a noveltype of paddles which are arranged so as to impart a spiral movement tothe material being acted upon, the paddles `being spaced relatively soas to exert a greater force upon the material where it is dense, orthick, than at its thinner portion.

In connection with the foregoing the invention also contemplatesemploying a novel type of feeding means for flavoring extracts and thelike, the flow of which may be regulated and directed to various partsof the receptacle in which the dough or batter is being mixed.

rlhe invention also contemplates employing means whereby the machine maybe operated either forwardly or reversed and also rendered idle. Andfinally the invention contemplates a novel arrangement of shaftng andbearings therefor by means of which the stirrers or paddles are operatedwith the minimum of power.

In the practical application of a machine capable of performing theabove stated functions it will, of course, be understood that theessential features thereof are necessarily susceptible of changes indetails and structural arrangements, but one preferred and eiiicientembodiment of the same is shown in the accompanying drawings, wherein-Figure 1 is a view in side elevation of the improved mixing machine.Fig. 2 is a detail elevation of the paddles or stirrers and their shaft.Fig. 3 is a detail view of the paddle shaft, the paddles being removed.Fig. 4 is a view in front elevation of a portion of the supportingstandard of the machine showing the support thereon for the mixingreceptacle.

Referring to said drawings by numerals 1 designates a verticallyarranged supporting standard which is provided with a Hat and elongatedbase 2 adapted to support the machine upon a lioor'or the like. Theupper portion of the said standard carries a substantially rectangularlyshaped, vertically arranged housing 3 which hasl inwardly projectingoppositely disposed intermediately arranged bearings 4 through which ashaft i5 projects. Said shaft 5 is the main power shaft ofthe machineand is equipped with three pulleys 6, 7 and 8, the pulley 6 being aforward one, the pulley S a reverse one, and the pulley 7 an idle one,by means of which the machine may have a belt connection with amotor orother suitable source of power. Said pulleys are of the conventionaltype, and hence their construction has not been shown in detail.

One end of the shaft 5 projects beyond one side of the housing 3 and hasa bevel gear 9 fast thereon which is in mesh with a horizontallyarranged bevel gear 9a fast on a driving shaft 10 vertically arranged inupper, lower and intermediate bearings l1, 12 and 13, carried byhorizontal arms 14, 15 and 16 projecting from said housing 3 and fromsaid standard 1. The lower end of said driving shaft 10 projects beyondits bearing 12 and is squared as indicated at 17 for the reception of acoupling sleeve 18 which is squared internally and which is held to saidsquared end of the shaft 10 by means of the thumb screw 19. A

The front face of the standard 1 at a point intermediate its base andthe lower bearing arm 15, is provided with a flattened plate 20 havingoutstanding corners 21 provided with bolt openings 22 for the receptionof fastening bolts 23 carried by the corners of a similar plate 24 fromwhich projects a bracket arm 25 carrying a circular rest 26 the upperedge of which is rounded as indicated at 27. Said rest is of greaterdiameter at its top portion than at its bot tom so as to adapt the samefor a snug engagement with a tapering batter receptacle 28. A hinge 29is carried by the standard 1 above the plate 20 to which is connected abracket arm 30 of a circular rest or holder 31 for a receptacle 32 thebottom portion of which carries an outwardly projecting,

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slightly inclined discharge tube 33 which is controlled by a valve 34.The receptacle 32 is so arranged that its discharge tube will projectover the batter or dough receptacle and deliver the contents of saidreceptacle 32 to said batter receptacle.

A paddle shaft 35 has a squared upper r end 85a which is engaged by thecoupling sleeve 18 to hold said paddle shaft to the driving shaft l0, asshown in Fig. 3. The paddle shaft extends into the batter receptacle 28and is provided with oppositely disposed rows of oblique slots 36-87,the slots of one row being reversely arranged relatively to the oppositerow. Paddles project outwardly from the rows of slots 36-37, saidpaddles being designated by the numerals 38-39- As will be observed byreference to Figs. 2 and 3, the lower three slots of each rowqaresomewhat closer together' than the other slots, which arrangementbringsthe lower paddles closer together so that they may act withgreater force upon the lower portion of the dough or batter, as sai-dlower portion of the dough or batter is the thicker portion. The paddlesare of graduated length, that is the upper ones are the longer and thelower ones the shorter, the arrangement in addition to adapting thepaddles for use with a tapering receptacle,

also contributes to a better spiral, or twisting stirring of thematerial in the receptacle, as will be obvious.

It will be 4seen from the foregoing that the present machine is one inwhich the additions to be made to the batter or dough may be deliveredin predetermined quantities by means of the described valve-controlleddischarge, and as the receptacle which holds said additions is pivotallymounted, the same may be moved relatively to the batter receptacle sothat its contents may be directed to various parts thereof.

The batter receptacle and the receptacle for delivering to the batterreceptacle may be readily removed from their supports for cleansing orother purposes, and the paddle shaft may be readily disconnected fromthe driving shaft for similar purposes, through the described couplingsleeve.

What I claim as my invention is:-

1. A-Vmachine of the character described comprising a base, av verticalstandard mounted thereon, a bracket upon said standard and mounted atright angles therewith and carrying a rest, a batter receptacle seatedin said rest, a second bracket hinged to said standard and carrying aVrest, a delivery receptacle seated in said rest above said batterreceptacle, a plurality of bearings extending at right angles fromV theupper partV of said standard, a `vertical driving shaft carried by saidbearings, a paddle shaft connected to said vertical shaft, a pluralityof paddles projecting from said paddle shaft, and means for operatingsaid vertical driving shaft.

2. A machine of the character described comprising a batter receptacle,a paddle shaft projecting therein and provided with oppositely disposedrows of slots, the lower slots being closer togetherV than the upperslots, and paddles projecting from said slots, said paddles beinggraduated in length.

8. A machine of the character described comprising a batter receptacle,a paddle shaft projecting therein and provided with oppositely disposedrows of oblique slots, said slots being reversely arranged, and thelower slots being closer together than the upper slots, and paddlesprojecting from said slots, saidpaddles being graduated in length.

In testimony whereof I hereunto aflix my signature in presence of twowitnesses.

FREDERICK SEIFFERT.

l'Vitnesses H. C. SoHRonDER, F. P. SCHROEDER.

